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一道闪电的传说巴塞罗那Relámpago住宅

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室内设计与装修 2024年第6期 99-103页

作者： h3o建筑事务所秋落 h3o建筑事务所

总部位于巴塞罗那的年轻建筑事务所h3o建筑事务所推出了Relámpago住宅,这是他们最为特别和不同寻常的住宅项目之一。在巴塞罗那郊区圣胡斯特德斯韦恩的传统加泰罗尼亚农舍内,对一座面积55m2的谦逊老谷仓进行翻新,打造出一个色彩丰富的... 详细信息

总部位于巴塞罗那的年轻建筑事务所h3o建筑事务所推出了Relámpago住宅,这是他们最为特别和不同寻常的住宅项目之一。在巴塞罗那郊区圣胡斯特德斯韦恩的传统加泰罗尼亚农舍内,对一座面积55m2的谦逊老谷仓进行翻新,打造出一个色彩丰富的独特空间,向访客诉说着自己难忘的故事。项目的灵感源自业主的愿望,这是一位热爱创意和艺术的历史学家。设计师以多年前一道闪电穿越古老农舍的传说为出发点,力图在功能性和大胆设计中展现这一灵感,以激发客户的艺术兴趣。

关键词：建筑事务所巴塞罗那住宅项目艺术兴趣加泰罗尼亚 Rel 闪电

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转角的邂逅巴塞罗那Tiberi酒吧

室内设计与装修 2024年第6期 104-107页

作者： h3o建筑事务所西溪 h3o建筑事务所

h3o建筑事务所是巴塞罗那一家年轻的设计公司,而同样位于巴塞罗那的Ti&beri俱乐部则以客制化的餐饮服务为人们所熟知。为了重新定义本地传统酒吧的体验,Tiberi俱乐部联手h3o建筑事务所的3位创始人Adri,Orriols、JoanGener和MiquelRuiz,... 详细信息

h3o建筑事务所是巴塞罗那一家年轻的设计公司,而同样位于巴塞罗那的Ti&beri俱乐部则以客制化的餐饮服务为人们所熟知。为了重新定义本地传统酒吧的体验,Tiberi俱乐部联手h3o建筑事务所的3位创始人Adri,Orriols、JoanGener和MiquelRuiz,共同打造了Tiberi酒吧。这是该俱乐部的第一家实体店,并已于2023年初夏开业。Tiber酒吧位于充满活力的PobleSec街区的一个转角处,面积82m^(2)。这个地区以多元的文化特色为亮点,吸引着众多的年轻人。设计师将这个空间打造成一个“宾至如归的酒吧”,完美诠释了Tiberi俱乐部的本质:试图通过提供独特的餐饮体验,来促进陌生人之间的交流和联系。

关键词：建筑事务所巴塞罗那餐饮服务俱乐部实体店酒吧陌生人客制化

Experimental study on dynamic mechanical property of cemented tailings backfill under SHPB impact loading

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International Journal of Minerals,Metallurgy and Materials 2019年第4期26卷 404-416页

作者： Yu-ye Tan Xin Yu Davide elmo Lin-hui Xu Wei-dong Song Key Laboratory of High-Efficient Mining and Safety of Metal Mines (Ministry of Education of China) University of Science and Technology Beijing School of Civil and Resources Engineering University of Science and Technology Beijing Norman B.Keevil Institute of Mining Engineering Applied Science SchoolUniversity of British Columbia

Cemented tailings backfill(CTB) have increasingly been used in recent years to improve the stability of mining stopes in deep underground mines. Deep mining processes are often associated with rock bursting and high-speed dynamic loading conditions. Therefore, it is important to investigate the characteristics and dynamic mechanical behavior of CTB. This paper presents the results of dynamic tests on CTB specimens with different cement and solid contents using a split Hopkinson pressure bar(SHPB). The results showed that some CTB specimens exhibited one to two lower stress peaks after reaching dynamic peak stress before they completely failed. The greater the cement-to-tailings ratio is, the more obvious the strain reaction. This property mainly manifested as follows. First,the dynamic peak stress increased with the increase of the cement-to-tailings ratio when the impact velocity was fixed. Second, the dynamic peak stress had a quadratic relationship with the average stress rate. Third, the cement-to-tailings ratio could enhance the increase rate of dynamic peak stress with strain rate. In addition, the dynamic strength enhancement factor K increased with the increase of strain rate, and its value was larger than that of the rock samples. The failure modes of CTB specimens under low-speed impact were tensile failure and X conjugate shear failure, where were nearly the same as those under static uniaxial and triaxial compression. The CTB specimens were crushed and broken under critical strain, a failure mode similar to that of low-strength concrete. The results of the experimental research can improve the understanding of the dynamic mechanical properties of CTB and guide the strength design of deep mining backfills.

关键词： impact loading test cemented tailings backfill dynamic mechanical properties split Hopkinson pressure bar

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新一轮家电“以旧换新”行动方案影响

日用电器 2024年第3期 1-2页

作者： 1.华创证券 2.光大证券 3.中信期货华创证券光大证券中信期货

国务院印发《推动大规模设备更新和消费品以旧换新行动方案》（以下简称《行动方案》），明确了5方面20项重点任务和实施设备更新、消费品以旧换新、回收循环利用、标准提升四大行动，提出积极开展家电等消费品以旧换新。《行动方案》...

国务院印发《推动大规模设备更新和消费品以旧换新行动方案》（以下简称《行动方案》），明确了5方面20项重点任务和实施设备更新、消费品以旧换新、回收循环利用、标准提升四大行动，提出积极开展家电等消费品以旧换新。《行动方案》家电直接相关内容1.到2027年废旧家电回收量较2023年增长30%,

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Determination of gemcitabine and its metabolite in human plasma using high-pressure liquid chromatography coupled with a diode array detector

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Acta Pharmacologica Sinica 2004年第12期25卷 18-23页

作者： Neng-ming LIN2,3, Su ZENG2,4, Sheng-lin MA3, Yun FAN3, Hai-jun ZHONG3, Luo FANG3 2Collegeof Pharmaceutical Sciences, Zhejiang University, Hangzhou 310031 3Zhejiang Cancer Hospital, Hangzhou 310022, China College of Pharmaceutical Sciences Zhejiang University Hangzhou 310031 China

AIM: To establish a high pressure liquid chromatography (HPLC) method for determination of the concentration of gemcitabine (dFdC) and its metabolite(dFdU) in human plasma. METHODS: Plasma 1.0 mL spikedwith floxuridine as an internal standard was extracted with 3.0 mL of methanol-acetonitrile (v/v, 1:9). The supernatant was evapo- rated at 60 oC and the residue was reconstituted with 0.5 mL of the solution used as the mobile phase. After centrifugation, 50 μL of the supernatant was injected into the HPLC system. Separation was achieved on a C18 (4.6 mm×250 mm, 5 μm) column at 25 oC with the flow rate of the mobile phase set to 0.8 mL/min. The compounds were detected at 268 nm. The mobile phase consisted of 40.0 mmol/L acetate ammonium buffer solution (pH 5.5) and acetonitrile (v/v, 97.5:2.5). RESULTS: The linear range was 0.20-10.0 mg/L(r=0.9999) for dFdC and 0.50-50.0 mg/L(r=0.9999) for dFdU. The limit of detection (LOD) was 0.10 mg/L for dFdC and 0.25 mg/L for dFdU, while the limit of quantification (LOQ) was 0.20 mg/L (RSD3 %) for dFdU. The average recovery of dFdC and dFdU by this method were 103.3 % and 98.7 %, respectively. For intra-day and inter-day, the corresponding standard deviations of the measurements of dFdC and dFdU were both less than 5.5 %. CONCLUSION: An analytical method was established to measure the concentrations of dFdC and dFdU in human plasma and was effectively applied to the dFdC and dFdU pharmacokinetic studies of 8 Chinese patients with malignant tumors.

关键词： high pressure liquid chromatography gemcitabine deoxycytidine floxuridine

Studies on the electronic structures of three-dimensional topological insulators by angle resolved photoemission spectroscopy

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Frontiers of physics 2012年第2期7卷 175-192页

作者： Yulin Chen (1) (2) (3) 1. Department of Physics University of Oxford Clarendon Laboratory Parks Road Oxford OX1 3PU UK2. Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory 2575 Sand Hill Road Menlo Park CA 94025 USA3. Geballe Laboratory for Advanced Materials Departments of Physics and Applied Physics Stanford University Stanford CA 94305 USA

Three-dimensional （3D） topological insulators represent a new state of quantum matter with a bulk gap and odd number of relativistic Dirac fermions on the surface. The unusual surface states of topological insulators rise from the nontrivial topology of their electronic structures as a result of strong spin-orbital coupling. In this review, we will briefly introduce the concept of topological insu- lators and the experimental method that can directly probe their unique electronic structure： angle resolved photoemission spectroscopy （ARPES）. A few examples are then presented to demonstrate the unique band structures of different families of topological insulators and the unusual properties of the topological surface states. Finally, we will briefly discuss the future development of topological quantum materials.

关键词： topological insulator (TI) photoemission ARPES

Effects of astragaloside IV on pathogenesis of metabolic syndrome in vitro

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Acta Pharmacologica Sinica 2006年第2期27卷 229-236页

作者： Ming-en XU~(2,3,4) Shang-zhi XIAO~3 Yong-hong SUN~3 Yang OU-YANG~3 Xiao-xiang ZHENG~(3,4) ~2Department of Biomedical Engineering,Hangzhou Dianzi University.Hangzhou 310018 ~3Department of Biomedical Engineering.Zhejiang University.Hangzhou 310027.China Department of Biomedical Engineering Hangzhou Dianzi UniversityHangzhou 310018 China. xumingen@***

Aim:To investigate the diverse pharmacological actions of astragaloside IV fromthe perspective of metabolic syndrome,and to investigate the effect of the drugon the pathogenesis of metabolic ***:Adipogenesis was usedas an indicator of the effect of astragaloside Ⅳ on preadipocyte differentiation,and was measured by using an oil red O *** uptake was determined bymeasuring the transport of [2-3H]-deoxyglucose into the *** concentrationsof peroxisome proliferator-activated receptor-γ（PPARγ）and aP2 mRNA were de-termined by using reverse transcription-polymerase chain *** viability loss of endothelial cells were detected by using flow cytometry andthe WST-1 assay,*** free Ca2+was labeled with Fluo-3 AMand measured by using a laser scanning confocal ***:Astragaloside Ⅳ can significantly potentiate insulin-induced preadipocyte differ-entiation at concentrations of 3,10,and 30 μg/mL,improve high glucose-inducedinsulin resistance in adipocytes at a concentration of 30 μg/mL,and prevent tumornecrosis factor（TNF）-α-induced apoptosis and viability loss at concentrations of10 and 30 μg/mL,and 30 μg/mL,respectively,in endothelial ***,wefound that these effects were partly due to the promotion of PPARγ expressionand to the inhibition of abnormal TNF-α-induced intracellular free Ca2+accumula-tion in endothelial ***:The diverse pharmacological actions ofastragaloside 1V can all be linked to metabolic syndrome *** studyprovides a new insight into the mechanism by which astragaloside Ⅳ exerts itseffect.

关键词： astragaloside Ⅳ metabolic syndrome X insulin resistance peroxisome proliferatoractivated receptors apoptosis calcium

Electron transmission and quantum current distribution of C_(70) molecule

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Science China(Physics,Mechanics & Astronomy) 2008年第2期51卷 126-132页

作者： KATSUNORI Tagami3 MASARU Tsukada Nano Technology Research Centre 120-5 Waseda University

The characteristics of electron transmission through C70 molecule bridge in which two atomic chain leads are connected to long-axis carbon atoms are investigated theoretically by using tight-binding approach based on the Green's function with only one π orbital electron per carbon atom. Electron transmission through C70 molecule from the input to the output terminal is obtained. From the spectrum, the switching feature of the electron transmission through C70 is found, and the oscil-lation property based on the quantized level is explained. The quantum current distributions inside C70 molecule bridge are calculated and simulated by the quan-tum current density theory based on Fisher-Lee formula at the energy point E = -0.2 eV, where the transmission spectrum shows a peak. The maximum and the mini-mum bond quantum currents are presented, and the reason why the currents are distributed nonuniformly is explained by the phase difference of the atomic orbits. The result shows that the currents at each atomic site agree with Kirchhoff quan-tum current conservation law.

关键词： C70 molecule electron transmission quantum current distribution

Influences of sand cover on erosion processes of loess slopes based on rainfall simulation experiments

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Journal of Arid Land 2018年第1期10卷 39-52页

作者： ZHANG Xiang LI Zhanbin LI Peng TANG Shanshan WANG Tian ZHANG Hui Post-doctoral Research Station of Xi'an Chan-Ba National Ecological District Xi'an 710024China State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Soil and Water ConservationChinese Academy of Science and Ministry of Water ResourcesYangling 712100China State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area Xi'an University of TechnologyXi'an 710048China

Aeolian-fluvial interplay erosion regions are subject to intense soil erosion and are of particular concern in loess areas of northwestern China. Understanding the composition, distribution, and transport processes of eroded sediments in these regions is of considerable scientific significance for controlling soil erosion. In this study, based on laboratory rainfall simulation experiments, we analyzed rainfall-induced erosion processes on sand-covered loess slopes （SS） with different sand cover patterns （including length and thickness） and uncovered loess slopes （LS） to investigate the influences of sand cover on erosion processes of loess slopes in case regions of aeolian-fluvial erosion. The grain-size curves of eroded sediments were fitted using the Weibull function. Compositions of eroded sediments under different sand cover patterns and rainfall intensities were analyzed to explore sediment transport modes of SS. The influences of sand cover amount and pattern on erosion processes of loess slopes were also discussed. The results show that sand cover on loess slopes influences the proportion of loess erosion and that the compositions of eroded sediments vary between SS and LS. Sand cover on loess slopes transforms silt erosion into sand erosion by reducing splash erosion and changing the rainfall-induced erosion processes. The percentage of eroded sand from SS in the early stage of runoff and sediment generation is always higher than that in the late stage. Sand cover on loess slopes aggravates loess erosion, not only by adding sand as additional eroded sediments but also by increasing the amount of eroded loess, compared with the loess slopes without sand cover. The influence of sand cover pattern on runoff yield and the amount of eroded sediments is larger than that of sand cover amount. Furthermore, given the same sand cover pattern, a thicker sand cover could increase sand erosion while a thinner sand cover could aggravate loess erosion. This difference expl

关键词： aeolian-fluvial erosion sand-covered loess slopes sand cover amount sand cover pattern rainfall intensity grain-size distribution Inner Mongolia Reach of the Yellow River